Linux Kernel Privilege Escalation Vulnerability

Added to KEV
2022-04-25
Federal due date
2022-05-16
Vendor
Linux
Product
Kernel
EPSS
99.2th percentile (score 0.820, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2022-0847

CISA short description

Linux kernel contains an improper initialization vulnerability where an unprivileged local user could escalate their privileges on the system. This vulnerability has the moniker of "Dirty Pipe."

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.